Please note this site is work in progress
You can change the Eprom of a Mega Drive/Genesis/Master System/Mark 3 game cartridge in order to exchange it with another Eprom containing another game or the same game with a different language.
Genesis/Mega Drive:
The rom files found on the internet habe to be byte swapped!
Genesis compatible Eproms:
EPROM / Size
27c400 - 512KBs (4Mbits)
27c800 - 1MBs (8Mbits)
27c160 - 2MBs (16Mbits)
27c322 - 4MBs (32Mbits)
Source: http://www.epforums.org/showthread.php?63960-GUIDE-Make-a-Reprogrammable-Genesis-Cart
confirmed flashed roms:
Master System/Mark 3:
No byteswap needed on rom files!
Master System/Mark 3 compatible Eproms:
27C256
27C2001 256KBs (2Mbits)
27C4001 512KBs (4Mbits)
Master System:
Donor Cards:
Game | Size | Circuit Board Color |
---|---|---|
After Burner | 4 Megabit | Brown |
Altered Beast | 2 Megabit | ?? |
Galaxy Force | 4 Megabit | Brown |
Golden Axe | 4 Megabit | Brown |
Mercs | 4 Megabit | Brown |
Monopoly | 1 Megabit, Battery Back-up RAM | White |
Penguin Land | 1 Megabit, Battery Back-up RAM | White |
Phantasy Star | 4 Megabit, Battery Back-up RAM | Brown |
R-Type | 4 Megabit | ?? |
Rastan | 2 Megabit | Brown |
Sagaia | 2 Megabit | Brown |
Space Gun | 4 Megabit | ?? |
Space Harrier | 2 Megabit | White |
Spellcaster | 4 Megabit | Brown |
Please refer to this page for more information:
Source: http://www.smspower.org/Development/SMSPagingChips